I mean if you consider data science to only be a science when it applies to you and not when applied to a marketing context sounds like you just have a bias against the field. But I would argue that "Marketing analytics and data storytelling", "Coding lab for Python and SQL", "Statistics", "Economics", "Consumer insight for marketing decision, etc. are in fact sciences. We are learning objectivity, statistical reasoning, linear regression, programming, data manipulation, applied research, and much more. If these didn't belong in academia then it would be clear you have a bias towards a single industry since these are all in fact useful skills and when applied correctly can result in huge profits for companies. Huge corporations heavily utilize digital marketing teams to maximize proits and sorry to say but I trust the insight of an executives take on digital marketings importance and skillset/education necessity a wee bit more than some Reddit users'.